Cod sursa(job #2635866)

Utilizator HermioneMatei Hermina-Maria Hermione Data 15 iulie 2020 19:00:29
Problema Algoritmul lui Euclid extins Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.72 kb
#include <bits/stdc++.h>

using namespace std;
inline long long Euclid_iter(long long a, long long b)
{
    while(b!=0)
    {
        long long t;
        t = a % b;
        a = b;
        b = t;
    }
    return a;
}

void Eulid_extins(long long a, long long b, long long c, long long &x, long long &y)
{
    long long d=Euclid_iter(a,b);
    int r=c/d;
    cout<<d;
    if(c%d)
    {
        x=0;
        y=0;
        return;
    }
    if(a==0)
    {
        y=c/b;
        if(c%b==0)
            x=1;
        else
        {
            x=0;
            y=0;
        }
        return;
    }
     if(b==0)
    {
        x=c/a;
        if(c%a==0)
            y=1;
        else
        {
            x=0;
            y=0;
        }
        return;
    }
    for(long long i=b; 1; i+=b)
        if(((d-i)*r)%a==0)
        {
            x = (d-i)*r/a;
            y = (c-(d-i)*r)/b;
            if(x<2000000000&&y<2000000000&&x>-2000000000&&y>-2000000000)
                return;
        }
        else if(((d+i)*r)%a==0)
        {
            x = (d+i)*r/a;
            y = (c-(d+i)*r)/b;
            if(x<2000000000&&y<2000000000&&x>-2000000000&&y>-2000000000)
                return;
        }
        /*{
        x = (double)(d-i)/a * c/d;
        cout<<x<<endl;
        if(x==(long long)x)
            break;
        }*/

    x=y=69;

}

int main()
{
    fstream f("euclid3.in");
    ofstream g("euclid3.out");
    long long n, a, b, c;
    long long x, y;
    f>>n;
    for(long long i = 0; i < n; i++)
    {
        f>>a>>b>>c;
        Eulid_extins(a, b, c, x, y);
        g<<(long long)x<<' '<<(long long)y<<'\n';
    }
    f.close();
    g.close();
    return 0;
}